question_answer

If a magnetic dipole is rotated through an angle \[\text{ }\!\!\theta\!\!\text{ }\] with respect to the direction of the magnetic field of intensity H then work done is :

A)  MH sin\[\text{ }\!\!\theta\!\!\text{ }\]                                

B)  MH (1 - sin \[\text{ }\!\!\theta\!\!\text{ }\])

C) \[\frac{MH}{2}\]                              

D)  MH(1-cos\[\text{ }\!\!\theta\!\!\text{ }\])